[Dovecot] Restricting IP and/or user access (POP3/IMAP)

Phil Clare dovecot2 at trinipoint.co.uk
Thu Aug 24 17:59:18 EEST 2006


The documentation says to authenticate only from a specific IP or network…
if you set this to to indicate the local loop then this
effectively blocks every IP address but this one. Since the extra field is
in passdb then this would imply it can be done on a per user basis.

Have you tried this?


From: dovecot-bounces at dovecot.org [mailto:dovecot-bounces at dovecot.org] On
Behalf Of Jos Chrispijn
Sent: 24 August 2006 15:08
To: dovecot at dovecot.org
Subject: [Dovecot] Restricting IP and/or user access (POP3/IMAP)

Just new on this mailinglist; I sure hope my questions wouldn't be too dumb
for words :-)

Q: Restricting IP and/or user access (POP3/IMAP)

What I would like to do is blocking some of my user from fetching their mail
with neither POP3 nor IMAP. The only way of letting them read/write their
e-mail is to be done with my/their Webmail client.

On the site of Dovecot I read: 'It's possible to allow user to authenticate
only from a specific IP or network. This is especially useful for master
users. This can be done by returning allow_nets extra field in passdb.'

Actually I am looking for a way of _blocking_ user(names) or certain IP
adress(es) instead of _allowing_ certain IP adresses to get their POP3/IMAP
mail. Pls could someone hint me out on this? 

Thanks in advance.

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